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SIGABA: Cryptanalysis of the Full Keyspace

2007; Taylor & Francis; Volume: 31; Issue: 3 Linguagem: Inglês

10.1080/01611190701394650

1558-1586

Mark Stamp, Wing On Chan,

Chaos-based Image/Signal Encryption

Abstract Abstract In this article, we consider an attack on the SIGABA cipher under the assumption that the largest practical keyspace is used. The attack highlights various strengths and weaknesses of SIGABA and provides insight into the inherent level of security provided by the cipher. Keywords: converter M–134CcryptanalysisCSP–889ECM mark IISIGABA Acknowledgment The authors thank Frode Weierud for numerous helpful comments and suggestions which greatly improved this article.